1 /* Test case for forgotten hw-watchpoints after fork()-off of a process. 2 3 Copyright 2012-2019 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, see <http://www.gnu.org/licenses/>. */ 19 20 #include <string.h> 21 #include <errno.h> 22 #include <sys/types.h> 23 #include <unistd.h> 24 #include <assert.h> 25 #include <stdio.h> 26 #include <sys/wait.h> 27 28 #include "watchpoint-fork.h" 29 30 void 31 forkoff (int nr) 32 { 33 pid_t child, pid_got; 34 int exit_code = 42 + nr; 35 int status, i; 36 37 child = fork (); 38 switch (child) 39 { 40 case -1: 41 assert (0); 42 case 0: 43 printf ("child%d: %d\n", nr, (int) getpid ()); 44 /* Delay to get both the "child%d" and "parent%d" message printed without 45 a race breaking expect by its endless wait on `$gdb_prompt$': 46 Breakpoint 3, marker () at ../../../gdb/testsuite/gdb.threads/watchpoint-fork.c:33 47 33 } 48 (gdb) parent2: 14223 */ 49 i = sleep (1); 50 assert (i == 0); 51 52 /* We must not get caught here (against a forgotten breakpoint). */ 53 var++; 54 marker (); 55 56 _exit (exit_code); 57 default: 58 printf ("parent%d: %d\n", nr, (int) child); 59 /* Delay to get both the "child%d" and "parent%d" message printed, see 60 above. */ 61 i = sleep (1); 62 assert (i == 0); 63 64 pid_got = wait (&status); 65 assert (pid_got == child); 66 assert (WIFEXITED (status)); 67 assert (WEXITSTATUS (status) == exit_code); 68 69 /* We must get caught here (against a false watchpoint removal). */ 70 marker (); 71 } 72 } 73